Quick turbo timer ?

There are 2 guys near me that have turbo timers for sale for round 50$ one is greddy with 1g dsm stuff and the other is just a hks straight out of the box... would i need anything else if i got the greddy a diff harness or somthing????

theyre pretty universal as far as i know...just gotta splice into a few wires and mount the thing.

I would get the hks and then buy a harness cause thats the easy way.. haha the harness is like 10 or 20 bucks

the hks is gone just the greddy so i would just have to splice it myself that shouldn't be a biggy with my car stero expiernce.